{ ... }: { nix = { gc = { automatic = true; dates = "hourly"; options = "--delete-older-than 7d"; }; optimise = { automatic = true; dates = [ "hourly" ]; }; }; nixpkgs.config = import ./nix-store/config.nix; home-manager.users.charlotte = { ... }: { xdg.configFile."nixpkgs/config.nix".source = ./nix-store/config.nix; }; }